Donald A. Davis Books

An account of the bizarre case of Jeffrey Dahmer--the son of middle-class parents whose ten-year murdering spree is possibly responsible for the deaths of more than sixteen people--describes Dahmer...

Death Cruise

By Donald A. Davis, Don Davis

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JonBenet: Inside the Ramsey Murder Investigation

By Donald A. Davis, Steve Thomas Rooney

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Stonewall Jackson: A Biography

By Donald A. Davis

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Deemed "irreplaceable" by Robert E. Lee, Stonewall Jackson assumed his nickname during the Battle of Bull Run in the Civil War. It is said that The Army of Northern Virginia never fully recovered f...

How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.